PENGARUH UKURAN BENIH ASAL KALIMANTAN BARAT TERHADAP PERTUMBUHAN BIBIT Shorea leprosula DI PERSEMAIAN

Abstract

Good quality of seeds, sufficient quantities and on time treatment can determine the success of planting. This research was conducted to know the effect of seed size from West Kalimantan on seed growth of Shorea leprosula in the nursery of Dipterocarp Research Center Samarinda. Total samples were 6 provenans from Gunung Bunga, West Kalimantan. The method used was Completely Randomized Design with seed size as the treatment and 3 replicates. From observation of the seedlings the average germination was 64.22% cm for small seeds, 77% for a medium-sized seed sand 83.56% for large seeds. Average height of 26.24 cm for small seeds, 28.13 cm for a mediumsized and 34.18 cm for large sized. Mean while,the average diameter to small-sized grain sof 0.26cm, the average grain diameter to 0.28 cm medium-sized and large sized grainsis 0.31cm. Based on the analysis it was found that the largest seeds has larger percentage of germination, higher growth and larger seedling diameter than the smaller seeds. Statistically the germination percentage, the height and diameter growth were significantly different.